C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language.

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Directx 11 full screen

I build simple directx 11 application in c++ that draw square to screen. Also check in the end of the program when I close the last peace of directx the number of free reference. This work great in ...
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116 views

server/client architecture, how to combine physics data, scene graph and database over the network?

I'm writting a C++ server and a C++ client for a rpg game. The client is using OpenSceneGraph for rendering the 3D. RakNet is used for communication between the client and server. At this time, the ...
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109 views

Python interpreter as in-game console

Say I have a game which has lots objects (NPCs, monsters, etc.), I want a console so I can change the variables of the objects (like changing HP for example), how could I embed python into my program, ...
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23 views

Full-motion transparentized video clips

This is sort of a question following onto a previous question I wrote specifically targeting XNA. Understanding that it's an involved enough process that I'd want to manage memory myself, I'm now ...
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265 views

Reading Color data from UTexture2D in UE4

Here's my code: // get RenderTarget2D static ConstructorHelpers::FObjectFinder<UTextureRenderTarget2D> TargetObj(TEXT("/Game/Textures/RenderTexture")); // generate a UTexture2D CameraTexture = ...
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173 views

glGetUniformLocation returns 23724032

as the title says, I have a problem using glGetUniformLocation call that returns, for the following code, the value 23724032. I'm writing a little engine and the draw function of my models is: void ...
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127 views

Blending Lightmaps and Dynamic Texture Shadows in HLSL/GLSL

I'm using Gile[s] as my lightmapper and my engine can execute GLSL/HLSL scripts. I would like to accomplish something like this for performance reasons. I was told that this technique can only be ...
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290 views

How to properly transform vertices for a model loaded using Assimp?

When I try to load a DAE model then vertices are not placed correctly. Here's the code snippet I use to load 3D models using Assimp : aiNode* CGameObject::findNode(aiNode* rootNode, const char ...
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402 views

2D Rotation Transform Matrix Issues

I'm stuck on my computer graphics class homework. I'm sorry if this is not right place to ask. I think this is closest thing to computer graphics. My assignment is to create basic 2D colored ...
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239 views

OpenGL - Texture disappears

I'm making a simple program with C++, SDL and GLEW. So far it is going great but I ran into a weird problem. One of my four textures would not show up on screen even though it used the same code as ...
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547 views

implementing shadows into my 2D GLSL-based lighting system

I'm writing a lighting system in OPENGL using GLSL shaders, and I'm pretty happy with the light casting I have so far, but I'm totally stuck on casting shadows. Everything I've found online on this ...
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731 views

Get derived Pawn from collision actor in UE4

I am trying to build a basic RTS unit selection but any time I try to possess the target pawn it crashes. The pawn in the collision is a blueprint derived directly from APawn. Am I casting from the ...
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76 views

How to Calculate K-Dops Faster

Ok so I have my general understanding of K-Dops for collision detection. I understand how to calculate them. I also understand the super slow way of recalculating them. Example: I have a simple ...
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57 views

Bullet Physics ConvexDecomposition?

I've looked at Bullet Physics ConvexComposition Demo and would like to implement that in my game but the code is so undescriptive and it's hard to understand what is going on. Would any of you people ...
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259 views

AddFontMemResourceEx and D3DXCreateFont corruption

I'm trying to load a font from a buffer using AddFontMemResourceEx and then creating a D3D font with D3DXCreateFont. This works fine on every platform except Windows XP, where it causes the wrong ...
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249 views

Different way to pass uniforms to seperate draws in glMultiDrawElementsIndirect

Given OpenGL version 4.3 and GLSL 430, what would be the best way to pass a matrix to each model in a draw call to glMultiDrawElementsIndirect? I am thinking of going the way of a TBO and indexing it ...
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235 views

Text alignment in OpenGL with FreeType2

I'm trying to implement font rendering and have got into some trouble with glyph metrics. Here's the code where I get the metrics: Glyph gl; gl.width = face->glyph->metrics.width / 64; ...
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277 views

Implementing Dead Reckoning in a Winsock server

I'm having a little difficulty understanding how I implement Dead Reckoning in my Server-Client Winsock game. I've been looking on the internet for a decent explanation that explains exactly: When ...
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633 views

Cocos2d-x CCFollow Zooming issue

Hi I am currently building a cocos2d-x game which incorporates pinch zoom using CCLayerPanZoom class which can be found here The problem is basically when using CCFollow and zooming and out, it ...
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800 views

How do I mix 3D skeletal animations?

I'm trying to create a 3D-model skeletal animation system for C++/Open GL. I would like to be able to mix animations by allowing animations to only affect specific bones. My game has ride-able ...
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529 views

Bullet Physics Simulation Running Slow

I'm in the process of converting my game engine from java which used the LWJGL and JBullet to c++. However, when I was implementing Bullet physics my simple simulation of a box dropping from specified ...
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280 views

Rotate a point in 3D space with sine and cosine

I got my camera controlled by the mouse. Now I want a sphere to be always in the center of my view(just for testing). I tried that by assigning the sine of the Y rotation of the camera times 10 as the ...
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214 views

Box Zoom - Fit to rectangle

I want to box select a section of my screen and then zoom in that selection. So I have four corner points (my rectangle which I can drag with the mouse) in pixel coordinates. I have a perspective ...
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1k views

Creating a new GLFW window and re-using the old context causes crash

I am using GLFW 3.0.2 and when I want to switch the application to fullscreen, I create a new window and intend to use the OpenGL context of the old window so I don't have to reload all the meshes, ...
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284 views

GLX/X11 Changing the rendering resolution

I have made a simple application that creates a window with an OpenGL 4.2 context and takes user input. I have implemented making the window go fullscreen with XRandR and can change the display ...
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415 views

2D Camera transformation sidescroller

i am currently trying to dive into 2D programming with DirectX, especially bulding a tile based sidescroller. I have worked with some chapters from a book (Advanced 2D Game Development) but always ...
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278 views

How to correctly synchronize a shared surface?

I am trying to share a direct3d9 surface between two processes. One process (let's call it A) writes to the surface, and the other (B) displays it on screen. Currently, process A does a StretchRect of ...
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192 views

OpenSceneGraph, multiple instances of a model

Im working on my first project using OpenSceneGraph. The project is a model flight simulator for one of my university courses, I want to be able to load airplanes (consisting of multiple models) and ...
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375 views

Why is my XInput gamepad press stamp not working?

I'm trying to add basic gamepad input to my c++ DirectX game but i'm having some trouble creating a press stamp (registers the press only the first time it's pressed if button held down). The entire ...
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192 views

Masking a CCLayer

I have a CCLayer (itemLayer) that has a bunch of CCMenuItemImage (itemButton) objects in it placed vertically in a column. These itemButton objects go way past the bounds of the screen and the ...
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171 views

IwGame (Marmalade): Does CIwGameSprite support SVG? How?

I have a small question about Marmalade IwGame engine. Does the CIwGameSprite support SVG (I've read that yes it does) If it does support SVG, how does it handle it, Does it convert that Vector ...
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346 views

Sketchy results from ray-plane intersection code

I've set up a demo with simple first-person controls using C++ and OpenGL, and it seems to work reasonably well. My goal is this: when the player looks at a plane and clicks the left mouse button, ...
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234 views

Help with Windows RawInput

I am having some trouble to receive and interpret mouse movement data from RawInput. Generally mouse input seems to work, I can query mouse buttons and receive updates of mouse movement. The problem ...
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244 views

UDK and Protocol Buffers

Actually two questions: Can I use TCP sockets in UDK to implement my own networking protocol? (I guess TCPLink is an answer) Is there any way I can user Protocol Buffers inside UDK? Or anything like ...
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306 views

Full screen shader causes performance hit

I basically want to have a shader run that can do something like toon shading, or grayscale the whole screen, or radial lighting. To do this, I create a new bitmap each time the display resizes that ...
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635 views

Algorithm for potential fields

Rather than computing potential fields in a grid and performing a lookup for them, I've decided to query the potential fields at a given point in 3D space by simply querying all the objects in a ...
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603 views

Joint constraints in PhysX

I'm trying to use PhysX for my physics engine. I'd like to use spherical joints, but I'm having trouble with the constraints. All of the examples that I've found refer to SDK v2.8. I'd like to ...
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13 views

3d rotation of a cube using DirectX

I can't solve an apparently simple problem: i have a cube, similar to the one in the following picture I've tried to write a small demo where i can rotate the cube by dragging the mouse, but i ...
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29 views

Defining camera/view space

Im working on expanding my camera class, but having trouble defining camera/view space in the manner of this diagram: What Im trying to achieve is to define the camera as a true object much like a ...
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53 views

Weird Collisions in ODE

I'm trying to get a basic OBB/OBB Collision System working. For this I use ODE. My problem is: Whenever I use the dSpaceCollide and pass in my Space and my Callback, my Callback shows me, that a ...
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10 views

Config SFML in QTCreator with file.pro

I know that are a method with cmake , but i wouldlike config my project in Qtcreator usinig qmake and my doubt is what my file .pro must have for work it ?. I will run in windows , maybe later linux . ...
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22 views

OBB Collision Intersection Problem

I'm trying to create OBB's around objects and then collide them using DirectX 11 and C++. It all works fine until I rotate one (or more) of the boxes and then the collision detection returns true too ...
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23 views

OBB/OBB Test in OZCollide

I want to know if anybody, who tried OZCollide (http://www.tsarevitch.org/ozcollide/), knows whether OBB vs. OBB Tests are possible or not. I know there is a AABB vs. OBB function but I can't find one ...
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13 views

Unreal Engine Physics creation is slower in Editor

I just figured out that when UPrimitiveComponent::CreatePhysicsState() is called, it calculates the mass, but only in editor, also when i build for non-editor it is faster (standalone) this is not ...
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53 views

Using different shaders for different objects openGL

Basically, I want to draw one object with one shader, and another object with a different shader, but the second object wont show. Currently working on some openGL stuff, and am trying to get one ...
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0answers
47 views

C++ Modern OpenGL - Calculate Vertex Normals

I'm learning modern OpenGL and i just got started so go easy on me :). Right now im trying to understand normals but im having some difficulties. On my program i have this class which i use to draw ...
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35 views

Sfml c++ scrollbar

Im making a program and i need to create a scrollbar class.My prgrams screen is 1200x800;The size of the little left arrow and little right arrow is 15x15; I calculate the width of the scrollbar in ...
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18 views

Skin Mesh Animation Shader Issue

I'm having troubles with properly animating a skin mesh from an .fbx file. I feel like the issue is in the shader, but not sure what is going on. All I know is that I am getting unexpected results ...
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49 views

vertex shader doesn't work properly

Linux, OPenGL 3.0, GLSL 130 (Intel card) I'm learning OpenGL and successfully rendered a triangle, but as soon as I create the matrix of projection I get an error. The shader compiles and works ...
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14 views

Fbx Importer/exporter groups

I want to create Groups (empty transforms in a Scene Graph) but i find no documentation on how to go about it, to create a fbx loader which can create groups or show the different objects in that ...